Ever since my (not-rooted stock Android) Nokia 6.1 phone was upgraded to Android 10, last January, I have a performance issue with it: A couple of times per day it becomes near or completely unusable, often permanently until a hard restart. Also this causes high battery usage.
However, using a battery analysis app didn't turn up any specific suspect.
Recently I discovered
adb shell, and when the phone starts behaving badly,
topshowed me that the CPU-hogging process at such moments is
Tasks: 681 total, 1 running, 680 sleeping, 0 stopped, 0 zombie Mem: 2.6G total, 2.4G used, 198M free, 11M buffers Swap: 1.0G total, 1.0G used, 112K free, 311M cached 800%cpu 38%user 10%nice 52%sys 684%idle 10%iow 2%irq 4%sirq 0%host PID USER PR NI VIRT RES SHR S[%CPU] %MEM TIME+ ARGS 1739 system 18 -2 7.9G 144M 47M S 12.3 5.2 13:37.24 system_server 148 root 20 0 0 0 0 S 8.6 0.0 3:50.15 [kswapd0] 564 logd 30 10 168M 10M 0.9M S 7.3 0.3 1:11.69 logd 28119 shell 20 0 35M 3.1M 1.7M R 5.0 0.1 0:00.45 top 705 root 20 0 5.1G 44M 24M S 5.0 1.6 0:54.88 zygote64
top -s 6(sorts by memory use,
RES) showed me that the main memory-using process at such moments is
com.android.vending(= Google Play Store).
Tasks: 690 total, 1 running, 689 sleeping, 0 stopped, 0 zombie Mem: 2.6G total, 2.4G used, 180M free, 17M buffers Swap: 1.0G total, 0.9G used, 2.1M free, 412M cached 800%cpu 9%user 3%nice 13%sys 772%idle 1%iow 2%irq 1%sirq 0%host PID USER PR NI VIRT [RES] SHR S %CPU %MEM TIME+ ARGS 5296 u0_a105 20 0 2.1G 472M 24M S 0.0 17.2 1:18.80 com.android.vending 1739 system 18 -2 7.9G 150M 53M S 3.0 5.4 13:12.22 system_server 2233 u0_a111 20 0 6.1G 108M 56M S 0.6 3.9 2:03.84 com.android.systemui 7120 u0_a161 20 0 7.7G 93M 45M S 0.6 3.4 8:22.83 com.google.android.youtube 2931 u0_a90 20 0 5.9G 83M 36M S 0.0 3.0 3:05.21 com.google.android.gms.persistent 26244 u0_a90 20 0 5.2G 74M 39M S 0.0 2.7 0:02.38 com.google.android.gms.ui
[Side note. That seems to explain why battery analysis didn't help: Presumably
kswapd CPU usage is ascribed to general kernel processing, not to this specific app.]
And that app is really the cause: Stopping that Google Play Store process (e.g., using
am force-stop com.android.vending) quickly brings performance back to normal levels.
As a workaround, I tried to disable automatic updates in Google Play Store, and that seems to have improved things a little, but the issue is definitely still there.
So now, as another workaround, a couple of times per day I hard-stop that application, which helps to prevent it usually.
My vague question is: How to I get further with this issue?
- Is this a known issue that has already been reported somewhere? Is the cause known? (E.g., is this triggered by the Google Play Store app detecting updates?)
- Can I report it to Nokia in some bug tracker? Can I report it to Google somewhere?
- What kind of additional information/dumps/logs would help to investigate this further?
- Are there any other/better workarounds? (Disable some feature, go back to an older version of Google Play Store, clear some cache or force something to be regenerated, disable swap, whatever...)
- Is there some way to automate the workaround I currently have? (I'm already using Automate for some other things, but any automated solution apparently requires my device to be rooted.)
(Note that my device is not rooted, and I would like to try to keep it that way. But I will consider rooting it, if there some kind of solution or workaround that requires that.
If it helps, phone model is TA-1043, currently running build number 00WW_4_10C_SP04.)